Answer
$\frac{f(b)-f(a)}{b-a}$
Work Step by Step
The average rate of change of a function $f$ between $x = a$ and $x = b$ is:
average rate of change = $\frac{f(b)-f(a)}{b-a}$
College Algebra 7th Edition
by Stewart, James; Redlin, Lothar; Watson, Saleem
Published by
Brooks Cole
ISBN 10:
1305115546
ISBN 13:
978-1-30511-554-5
Chapter 2, Functions - Section 2.4 - Average Rate of Change of a Function - 2.4 Exercises - Page 223: 2
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